package com.train.mgr.modules.biz.service;

import com.train.mgr.modules.biz.entity.CourseStuGroupRel;
import com.baomidou.mybatisplus.extension.service.IService;


/**
 * <p>
 * 课程学员分组关系表 服务类
 * </p>
 *
 * @author cxg
 * @date 2025-10-02
 */
public interface ICourseStuGroupRelService extends IService<CourseStuGroupRel> {

    long findCourseGroupStuNum(Long groupId,Long courseId);
}
